Portable electronic device, method, and graphical user interface for displaying structured electronic documents

ABSTRACT

A computer-implemented method, for use in conjunction with a portable electronic device with a touch screen display, comprises displaying at least a portion of a structured electronic document on the touch screen display, wherein the structured electronic document comprises a plurality of boxes of content, and detecting a first gesture at a location on the displayed portion of the structured electronic document. A first box in the plurality of boxes at the location of the first gesture is determined. The first box on the touch screen display is enlarged and substantially centered.

RELATED APPLICATIONS

This application is a continuation of U.S. application Ser. No.11/850,013, filed Sep. 4, 2007 now U.S. Pat. No. 7,864,163, entitled“Portable Electronic Device, Method, and Graphical User Interface forDisplaying Structured Electronic Documents,” which claims priority toU.S. Provisional Patent Application Nos. 60/937,993, “PortableMultifunction Device,” filed Jun. 29, 2007; 60/946,715, “PortableElectronic Device, Method, And Graphical User Interface For DisplayingStructured Electronic Documents,” filed Jun. 27, 2007; 60/879,469,“Portable Multifunction Device,” filed Jan. 8, 2007; 60/879,253,“Portable Multifunction Device,” filed Jan. 7, 2007; and 60/824,769,“Portable Multifunction Device,” filed Sep. 6, 2006. All of theseapplications are incorporated by referenced herein in their entirety.

This application is related to the following applications: (1) U.S.patent application Ser. No. 10/188,182, “Touch Pad For Handheld Device,”filed Jul. 1, 2002; (2) U.S. patent application Ser. No. 10/722,948,“Touch Pad For Handheld Device,” filed Nov. 25, 2003; (3) U.S. patentapplication Ser. No. 10/643,256, “Movable Touch Pad With AddedFunctionality,” filed Aug. 18, 2003; (4) U.S. patent application Ser.No. 10/654,108, “Ambidextrous Mouse,” filed Sep. 2, 2003; (5) U.S.patent application Ser. No. 10/840,862, “Multipoint Touchscreen,” filedMay 6, 2004; (6) U.S. patent application Ser. No. 10/903,964, “GesturesFor Touch Sensitive Input Devices,” filed Jul. 30, 2004; (7) U.S. patentapplication Ser. No. 11/038,590, “Mode-Based Graphical User InterfacesFor Touch Sensitive Input Devices” filed Jan. 18, 2005; (8) U.S. patentapplication Ser. No. 11/057,050, “Display Actuator,” filed Feb. 11,2005; (9) U.S. Provisional Patent Application No. 60/658,777,“Multi-Functional Hand-Held Device,” filed Mar. 4, 2005; (10) U.S.patent application Ser. No. 11/367,749, “Multi-Functional Hand-HeldDevice,” filed Mar. 3, 2006; and (11) U.S. Provisional PatentApplication No. 60/947,155, “Portable Electronic Device, Method, AndGraphical User Interface For Displaying Inline Multimedia Content”,filed Jun. 29, 2007. All of these applications are incorporated byreference herein in their entirety.

TECHNICAL FIELD

The disclosed embodiments relate generally to portable electronicdevices, and more particularly, to portable electronic devices thatdisplay structured electronic documents such as web pages on a touchscreen display.

BACKGROUND

As portable electronic devices become more compact, and the number offunctions performed by a given device increase, it has become asignificant challenge to design a user interface that allows users toeasily interact with a multifunction device. This challenge isparticular significant for handheld portable devices, which have muchsmaller screens than desktop or laptop computers. This situation isunfortunate because the user interface is the gateway through whichusers receive not only content but also responses to user actions orbehaviors, including user attempts to access a device's features, tools,and functions. Some portable communication devices (e.g., mobiletelephones, sometimes called mobile phones, cell phones, cellulartelephones, and the like) have resorted to adding more pushbuttons,increasing the density of push buttons, overloading the functions ofpushbuttons, or using complex menu systems to allow a user to access,store and manipulate data. These conventional user interfaces oftenresult in complicated key sequences and menu hierarchies that must bememorized by the user.

Many conventional user interfaces, such as those that include physicalpushbuttons, are also inflexible. This may prevent a user interface frombeing configured and/or adapted by either an application running on theportable device or by users. When coupled with the time consumingrequirement to memorize multiple key sequences and menu hierarchies, andthe difficulty in activating a desired pushbutton, such inflexibility isfrustrating to most users.

In particular, it is slow and tedious to navigate in structuredelectronic documents (e.g., web pages) in portable electronic deviceswith small screens using conventional input devices (e.g., 5-way toggleswitches). Moreover, it is cumbersome to control and view multimediacontent within such documents on portable electronic devices.

Accordingly, there is a need for portable electronic devices with moretransparent and intuitive user interfaces for viewing and navigatingstructured electronic documents and multimedia content within suchdocuments. Such interfaces increase the effectiveness, efficiency anduser satisfaction with activities like web browsing on portableelectronic devices.

SUMMARY

The above deficiencies and other problems associated with userinterfaces for portable devices are reduced or eliminated by thedisclosed portable multifunction device. In some embodiments, the devicehas a touch-sensitive display (also known as a “touch screen”) with agraphical user interface (GUI), one or more processors, memory and oneor more modules, programs or sets of instructions stored in the memoryfor performing multiple functions. In some embodiments, the userinteracts with the GUI primarily through finger contacts and gestures onthe touch-sensitive display. In some embodiments, the functions mayinclude telephoning, video conferencing, e-mailing, instant messaging,blogging, digital photographing, digital videoing, web browsing, digitalmusic playing, and/or digital video playing. Instructions for performingthese functions may be included in a computer readable storage medium orother computer program product configured for execution by one or moreprocessors.

In one aspect of the invention, a computer-implemented method, for usein conjunction with a portable electronic device with a touch screendisplay, comprises: displaying at least a portion of a structuredelectronic document on the touch screen display, wherein the structuredelectronic document comprises a plurality of boxes of content; detectinga first gesture at a location on the displayed portion of the structuredelectronic document; determining a first box in the plurality of boxesat the location of the first gesture; and enlarging and substantiallycentering the first box on the touch screen display.

In another aspect of the invention, a graphical user interface on aportable electronic device with a touch screen display comprises: atleast a portion of a structured electronic document, wherein thestructured electronic document comprises a plurality of boxes ofcontent. In response to detecting a first gesture at a location on theportion of the structured electronic document, a first box in theplurality of boxes at the location of the first gesture is determinedand the first box is enlarged and substantially centered on the touchscreen display.

In another aspect of the invention, a portable electronic devicecomprises: a touch screen display, one or more processors, memory, andone or more programs. The one or more programs are stored in the memoryand configured to be executed by the one or more processors. The one ormore programs include instructions for displaying at least a portion ofa structured electronic document on the touch screen display, whereinthe structured electronic document comprises a plurality of boxes ofcontent. The one or more programs also include: instructions fordetecting a first gesture at a location on the displayed portion of thestructured electronic document; instructions for determining a first boxin the plurality of boxes at the location of the first gesture; andinstructions for enlarging and substantially centering the first box onthe touch screen display.

In another aspect of the invention, a computer-program product comprisesa computer readable storage medium and a computer program mechanism(e.g., one or more computer programs) embedded therein. The computerprogram mechanism comprises instructions, which when executed by aportable electronic device with a touch screen display, cause thedevice: to display at least a portion of a structured electronicdocument on the touch screen display, wherein the structured electronicdocument comprises a plurality of boxes of content; to detect a firstgesture at a location on the displayed portion of the structuredelectronic document; to determine a first box in the plurality of boxesat the location of the first gesture; and to enlarge and substantiallycenter the first box on the touch screen display.

In another aspect of the invention, a portable electronic device with atouch screen display comprises: means for displaying at least a portionof a structured electronic document on the touch screen display, whereinthe structured electronic document comprises a plurality of boxes ofcontent; means for detecting a first gesture at a location on thedisplayed portion of the structured electronic document; means fordetermining a first box in the plurality of boxes at the location of thefirst gesture; and means for enlarging and substantially centering thefirst box on the touch screen display.

The disclosed embodiments allow users to more easily view and navigatestructured electronic documents and multimedia content within suchdocuments on portable electronic devices.

BRIEF DESCRIPTION OF THE DRAWINGS

For a better understanding of the aforementioned embodiments of theinvention as well as additional embodiments thereof, reference should bemade to the Description of Embodiments below, in conjunction with thefollowing drawings in which like reference numerals refer tocorresponding parts throughout the figures.

FIGS. 1A and 1B are block diagrams illustrating portable multifunctiondevices with touch-sensitive displays in accordance with someembodiments.

FIG. 2 illustrates a portable multifunction device having a touch screenin accordance with some embodiments.

FIG. 3 illustrates an exemplary user interface for unlocking a portableelectronic device in accordance with some embodiments.

FIGS. 4A and 4B illustrate exemplary user interfaces for a menu ofapplications on a portable multifunction device in accordance with someembodiments.

FIGS. 5A-5M illustrate exemplary user interfaces for a browser inaccordance with some embodiments.

FIGS. 6A-6C are flow diagrams illustrating a process for displayingstructured electronic documents such as web pages on a portableelectronic device with a touch screen display in accordance with someembodiments.

FIGS. 7A-7F illustrate exemplary user interfaces for playing an item ofinline multimedia content in accordance with some embodiments.

FIG. 8 is a flow diagram illustrating a process for displaying inlinemultimedia content on a portable electronic device with a touch screendisplay in accordance with some embodiments.

DESCRIPTION OF EMBODIMENTS

Reference will now be made in detail to embodiments, examples of whichare illustrated in the accompanying drawings. In the following detaileddescription, numerous specific details are set forth in order to providea thorough understanding of the present invention. However, it will beapparent to one of ordinary skill in the art that the present inventionmay be practiced without these specific details. In other instances,well-known methods, procedures, components, circuits, and networks havenot been described in detail so as not to unnecessarily obscure aspectsof the embodiments.

It will also be understood that, although the terms first, second, etc.may be used herein to describe various elements, these elements shouldnot be limited by these terms. These terms are only used to distinguishone element from another. For example, a first gesture could be termed asecond gesture, and, similarly, a second gesture could be termed a firstgesture, without departing from the scope of the present invention.

The terminology used in the description of the invention herein is forthe purpose of describing particular embodiments only and is notintended to be limiting of the invention. As used in the description ofthe invention and the appended claims, the singular forms “a”, “an” and“the” are intended to include the plural forms as well, unless thecontext clearly indicates otherwise. It will also be understood that theterm “and/or” as used herein refers to and encompasses any and allpossible combinations of one or more of the associated listed items. Itwill be further understood that the terms “comprises” and/or“comprising,” when used in this specification, specify the presence ofstated features, integers, steps, operations, elements, and/orcomponents, but do not preclude the presence or addition of one or moreother features, integers, steps, operations, elements, components,and/or groups thereof.

Embodiments of a portable multifunction device, user interfaces for suchdevices, and associated processes for using such devices are described.In some embodiments, the device is a portable communications device suchas a mobile telephone that also contains other functions, such as PDAand/or music player functions.

The user interface may include a physical click wheel in addition to atouch screen or a virtual click wheel displayed on the touch screen. Aclick wheel is a user-interface device that may provide navigationcommands based on an angular displacement of the wheel or a point ofcontact with the wheel by a user of the device. A click wheel may alsobe used to provide a user command corresponding to selection of one ormore items, for example, when the user of the device presses down on atleast a portion of the wheel or the center of the wheel. Alternatively,breaking contact with a click wheel image on a touch screen surface mayindicate a user command corresponding to selection. For simplicity, inthe discussion that follows, a portable multifunction device thatincludes a touch screen is used as an exemplary embodiment. It should beunderstood, however, that some of the user interfaces and associatedprocesses may be applied to other devices, such as personal computersand laptop computers, which may include one or more other physicaluser-interface devices, such as a physical click wheel, a physicalkeyboard, a mouse and/or a joystick.

The device supports a variety of applications, such as one or more ofthe following: a telephone application, a video conferencingapplication, an e-mail application, an instant messaging application, ablogging application, a photo management application, a digital cameraapplication, a digital video camera application, a web browsingapplication, a digital music player application, and/or a digital videoplayer application.

The various applications that may be executed on the device may use atleast one common physical user-interface device, such as the touchscreen. One or more functions of the touch screen as well ascorresponding information displayed on the device may be adjusted and/orvaried from one application to the next and/or within a respectiveapplication. In this way, a common physical architecture (such as thetouch screen) of the device may support the variety of applications withuser interfaces that are intuitive and transparent.

The user interfaces may include one or more soft keyboard embodiments.The soft keyboard embodiments may include standard (QWERTY) and/ornon-standard configurations of symbols on the displayed icons of thekeyboard, such as those described in U.S. patent application Ser. No.11/459,606, “Keyboards For Portable Electronic Devices,” filed Jul. 24,2006, and Ser. No. 11/459,615, “Touch Screen Keyboards For PortableElectronic Devices,” filed Jul. 24, 2006, the contents of which arehereby incorporated by reference. The keyboard embodiments may include areduced number of icons (or soft keys) relative to the number of keys inexisting physical keyboards, such as that for a typewriter. This maymake it easier for users to select one or more icons in the keyboard,and thus, one or more corresponding symbols. The keyboard embodimentsmay be adaptive. For example, displayed icons may be modified inaccordance with user actions, such as selecting one or more icons and/orone or more corresponding symbols. One or more applications on theportable device may utilize common and/or different keyboardembodiments. Thus, the keyboard embodiment used may be tailored to atleast some of the applications. In some embodiments, one or morekeyboard embodiments may be tailored to a respective user. For example,one or more keyboard embodiments may be tailored to a respective userbased on a word usage history (lexicography, slang, individual usage) ofthe respective user. Some of the keyboard embodiments may be adjusted toreduce a probability of a user error when selecting one or more icons,and thus one or more symbols, when using the soft keyboard embodiments.

Attention is now directed towards embodiments of the device. FIGS. 1Aand 1B are block diagrams illustrating portable multifunction devices100 with touch-sensitive displays 112 in accordance with someembodiments. The touch-sensitive display 112 is sometimes called a“touch screen” for convenience, and may also be known as or called atouch-sensitive display system. The device 100 may include a memory 102(which may include one or more computer readable storage mediums), amemory controller 122, one or more processing units (CPU's) 120, aperipherals interface 118, RF circuitry 108, audio circuitry 110, aspeaker 111, a microphone 113, an input/output (I/O) subsystem 106,other input or control devices 116, and an external port 124. The device100 may include one or more optical sensors 164. These components maycommunicate over one or more communication buses or signal lines 103.

It should be appreciated that the device 100 is only one example of aportable multifunction device 100, and that the device 100 may have moreor fewer components than shown, may combine two or more components, or amay have a different configuration or arrangement of the components. Thevarious components shown in FIGS. 1A and 1B may be implemented inhardware, software or a combination of both hardware and software,including one or more signal processing and/or application specificintegrated circuits.

Memory 102 may include high-speed random access memory and may alsoinclude non-volatile memory, such as one or more magnetic disk storagedevices, flash memory devices, or other non-volatile solid-state memorydevices. Access to memory 102 by other components of the device 100,such as the CPU 120 and the peripherals interface 118, may be controlledby the memory controller 122.

The peripherals interface 118 couples the input and output peripheralsof the device to the CPU 120 and memory 102. The one or more processors120 run or execute various software programs and/or sets of instructionsstored in memory 102 to perform various functions for the device 100 andto process data.

In some embodiments, the peripherals interface 118, the CPU 120, and thememory controller 122 may be implemented on a single chip, such as achip 104. In some other embodiments, they may be implemented on separatechips.

The RF (radio frequency) circuitry 108 receives and sends RF signals,also called electromagnetic signals. The RF circuitry 108 convertselectrical signals to/from electromagnetic signals and communicates withcommunications networks and other communications devices via theelectromagnetic signals. The RF circuitry 108 may include well-knowncircuitry for performing these functions, including but not limited toan antenna system, an RF transceiver, one or more amplifiers, a tuner,one or more oscillators, a digital signal processor, a CODEC chipset, asubscriber identity module (SIM) card, memory, and so forth. The RFcircuitry 108 may communicate with networks, such as the Internet, alsoreferred to as the World Wide Web (WWW), an intranet and/or a wirelessnetwork, such as a cellular telephone network, a wireless local areanetwork (LAN) and/or a metropolitan area network (MAN), and otherdevices by wireless communication. The wireless communication may useany of a plurality of communications standards, protocols andtechnologies, including but not limited to Global System for MobileCommunications (GSM), Enhanced Data GSM Environment (EDGE), widebandcode division multiple access (W-CDMA), code division multiple access(CDMA), time division multiple access (TDMA), Bluetooth, WirelessFidelity (Wi-Fi) (e.g., IEEE 802.11a, IEEE 802.11b, IEEE 802.11g and/orIEEE 802.11n), voice over Internet Protocol (VoIP), Wi-MAX, a protocolfor email (e.g., Internet message access protocol (IMAP) and/or postoffice protocol (POP)), instant messaging (e.g., extensible messagingand presence protocol (XMPP), Session Initiation Protocol for InstantMessaging and Presence Leveraging Extensions (SIMPLE), and/or InstantMessaging and Presence Service (IMPS)), and/or Short Message Service(SMS)), or any other suitable communication protocol, includingcommunication protocols not yet developed as of the filing date of thisdocument.

The audio circuitry 110, the speaker 111, and the microphone 113 providean audio interface between a user and the device 100. The audiocircuitry 110 receives audio data from the peripherals interface 118,converts the audio data to an electrical signal, and transmits theelectrical signal to the speaker 111. The speaker 111 converts theelectrical signal to human-audible sound waves. The audio circuitry 110also receives electrical signals converted by the microphone 113 fromsound waves. The audio circuitry 110 converts the electrical signal toaudio data and transmits the audio data to the peripherals interface 118for processing. Audio data may be retrieved from and/or transmitted tomemory 102 and/or the RF circuitry 108 by the peripherals interface 118.In some embodiments, the audio circuitry 110 also includes a headsetjack (e.g. 212, FIG. 2). The headset jack provides an interface betweenthe audio circuitry 110 and removable audio input/output peripherals,such as output-only headphones or a headset with both output (e.g., aheadphone for one or both ears) and input (e.g., a microphone).

The I/O subsystem 106 couples input/output peripherals on the device100, such as the touch screen 112 and other input/control devices 116,to the peripherals interface 118. The I/O subsystem 106 may include adisplay controller 156 and one or more input controllers 160 for otherinput or control devices. The one or more input controllers 160receive/send electrical signals from/to other input or control devices116. The other input/control devices 116 may include physical buttons(e.g., push buttons, rocker buttons, etc.), dials, slider switches,joysticks, click wheels, and so forth. In some alternate embodiments,input controller(s) 160 may be coupled to any (or none) of thefollowing: a keyboard, infrared port, USB port, and a pointer devicesuch as a mouse. The one or more buttons (e.g., 208, FIG. 2) may includean up/down button for volume control of the speaker 111 and/or themicrophone 113. The one or more buttons may include a push button (e.g.,206, FIG. 2). A quick press of the push button may disengage a lock ofthe touch screen 112 or begin a process that uses gestures on the touchscreen to unlock the device, as described in U.S. patent applicationSer. No. 11/322,549, “Unlocking a Device by Performing Gestures on anUnlock Image,” filed Dec. 23, 2005, which is hereby incorporated byreference. A longer press of the push button (e.g., 206) may turn powerto the device 100 on or off. The user may be able to customize afunctionality of one or more of the buttons. The touch screen 112 isused to implement virtual or soft buttons and one or more softkeyboards.

The touch-sensitive touch screen 112 provides an input interface and anoutput interface between the device and a user. The display controller156 receives and/or sends electrical signals from/to the touch screen112. The touch screen 112 displays visual output to the user. The visualoutput may include graphics, text, icons, video, and any combinationthereof (collectively termed “graphics”). In some embodiments, some orall of the visual output may correspond to user-interface objects,further details of which are described below.

A touch screen 112 has a touch-sensitive surface, sensor or set ofsensors that accepts input from the user based on haptic and/or tactilecontact. The touch screen 112 and the display controller 156 (along withany associated modules and/or sets of instructions in memory 102) detectcontact (and any movement or breaking of the contact) on the touchscreen 112 and converts the detected contact into interaction withuser-interface objects (e.g., one or more soft keys, icons, web pages orimages) that are displayed on the touch screen. In an exemplaryembodiment, a point of contact between a touch screen 112 and the usercorresponds to a finger of the user.

The touch screen 112 may use LCD (liquid crystal display) technology, orLPD (light emitting polymer display) technology, although other displaytechnologies may be used in other embodiments. The touch screen 112 andthe display controller 156 may detect contact and any movement orbreaking thereof using any of a plurality of touch sensing technologiesnow known or later developed, including but not limited to capacitive,resistive, infrared, and surface acoustic wave technologies, as well asother proximity sensor arrays or other elements for determining one ormore points of contact with a touch screen 112.

A touch-sensitive display in some embodiments of the touch screen 112may be analogous to the multi-touch sensitive tablets described in thefollowing U.S. Pat. No. 6,323,846 (Westerman et al.), U.S. Pat. No.6,570,557 (Westerman et al.), and/or U.S. Pat. No. 6,677,932(Westerman), and/or U.S. Patent Publication 2002/0015024A1, each ofwhich is hereby incorporated by reference. However, a touch screen 112displays visual output from the portable device 100, whereas touchsensitive tablets do not provide visual output.

A touch-sensitive display in some embodiments of the touch screen 112may be as described in the following applications: (1) U.S. patentapplication Ser. No. 11/381,313, “Multipoint Touch Surface Controller,”filed May 2, 2006; (2) U.S. patent application Ser. No. 10/840,862,“Multipoint Touchscreen,” filed May 6, 2004; (3) U.S. patent applicationSer. No. 10/903,964, “Gestures For Touch Sensitive Input Devices,” filedJul. 30, 2004; (4) U.S. patent application Ser. No. 11/048,264,“Gestures For Touch Sensitive Input Devices,” filed Jan. 31, 2005; (5)U.S. patent application Ser. No. 11/038,590, “Mode-Based Graphical UserInterfaces For Touch Sensitive Input Devices,” filed Jan. 18, 2005; (6)U.S. patent application Ser. No. 11/228,758, “Virtual Input DevicePlacement On A Touch Screen User Interface,” filed Sep. 16, 2005; (7)U.S. patent application Ser. No. 11/228,700, “Operation Of A ComputerWith A Touch Screen Interface,” filed Sep. 16, 2005; (8) U.S. patentapplication Ser. No. 11/228,737, “Activating Virtual Keys Of ATouch-Screen Virtual Keyboard,” filed Sep. 16, 2005; and (9) U.S. patentapplication Ser. No. 11/367,749, “Multi-Functional Hand-Held Device,”filed Mar. 3, 2006. All of these applications are incorporated byreference herein.

The touch screen 112 may have a resolution in excess of 100 dpi. In anexemplary embodiment, the touch screen has a resolution of approximately160 dpi. The user may make contact with the touch screen 112 using anysuitable object or appendage, such as a stylus, a finger, and so forth.In some embodiments, the user interface is designed to work primarilywith finger-based contacts and gestures, which are much less precisethan stylus-based input due to the larger area of contact of a finger onthe touch screen. In some embodiments, the device translates the roughfinger-based input into a precise pointer/cursor position or command forperforming the actions desired by the user.

In some embodiments, in addition to the touch screen, the device 100 mayinclude a touchpad (not shown) for activating or deactivating particularfunctions. In some embodiments, the touchpad is a touch-sensitive areaof the device that, unlike the touch screen, does not display visualoutput. The touchpad may be a touch-sensitive surface that is separatefrom the touch screen 112 or an extension of the touch-sensitive surfaceformed by the touch screen.

In some embodiments, the device 100 may include a physical or virtualclick wheel as an input control device 116. A user may navigate amongand interact with one or more graphical objects (henceforth referred toas icons) displayed in the touch screen 112 by rotating the click wheelor by moving a point of contact with the click wheel (e.g., where theamount of movement of the point of contact is measured by its angulardisplacement with respect to a center point of the click wheel). Theclick wheel may also be used to select one or more of the displayedicons. For example, the user may press down on at least a portion of theclick wheel or an associated button. User commands and navigationcommands provided by the user via the click wheel may be processed by aninput controller 160 as well as one or more of the modules and/or setsof instructions in memory 102. For a virtual click wheel, the clickwheel and click wheel controller may be part of the touch screen 112 andthe display controller 156, respectively. For a virtual click wheel, theclick wheel may be either an opaque or semitransparent object thatappears and disappears on the touch screen display in response to userinteraction with the device. In some embodiments, a virtual click wheelis displayed on the touch screen of a portable multifunction device andoperated by user contact with the touch screen.

The device 100 also includes a power system 162 for powering the variouscomponents. The power system 162 may include a power management system,one or more power sources (e.g., battery, alternating current (AC)), arecharging system, a power failure detection circuit, a power converteror inverter, a power status indicator (e.g., a light-emitting diode(LED)) and any other components associated with the generation,management and distribution of power in portable devices.

The device 100 may also include one or more optical sensors 164. FIGS.1A and 1B show an optical sensor coupled to an optical sensor controller158 in I/O subsystem 106. The optical sensor 164 may includecharge-coupled device (CCD) or complementary metal-oxide semiconductor(CMOS) phototransistors. The optical sensor 164 receives light from theenvironment, projected through one or more lens, and converts the lightto data representing an image. In conjunction with an imaging module 143(also called a camera module), the optical sensor 164 may capture stillimages or video. In some embodiments, an optical sensor is located onthe back of the device 100, opposite the touch screen display 112 on thefront of the device, so that the touch screen display may be used as aviewfinder for either still and/or video image acquisition. In someembodiments, an optical sensor is located on the front of the device sothat the user's image may be obtained for videoconferencing while theuser views the other video conference participants on the touch screendisplay. In some embodiments, the position of the optical sensor 164 canbe changed by the user (e.g., by rotating the lens and the sensor in thedevice housing) so that a single optical sensor 164 may be used alongwith the touch screen display for both video conferencing and stilland/or video image acquisition.

The device 100 may also include one or more proximity sensors 166. FIGS.1A and 1B show a proximity sensor 166 coupled to the peripheralsinterface 118. Alternately, the proximity sensor 166 may be coupled toan input controller 160 in the I/O subsystem 106. The proximity sensor166 may perform as described in U.S. patent application Ser. No.11/241,839, “Proximity Detector In Handheld Device,” filed Sep. 30,2005; Ser. No. 11/240,788, “Proximity Detector In Handheld Device,”filed Sep. 30, 2005; Ser. No. 11/620,702, filed Jan. 7, 2007, “UsingAmbient Light Sensor To Augment Proximity Sensor Output;” Ser. No.11/586,862, filed Oct. 24, 2006, “Automated Response To And Sensing OfUser Activity In Portable Devices;” and Ser. No. 11/638,251, filed Dec.12, 2006, “Methods And Systems For Automatic Configuration OfPeripherals,” which are hereby incorporated by reference. In someembodiments, the proximity sensor turns off and disables the touchscreen 112 when the multifunction device is placed near the user's ear(e.g., when the user is making a phone call). In some embodiments, theproximity sensor keeps the screen off when the device is in the user'spocket, purse, or other dark area to prevent unnecessary batterydrainage when the device is a locked state.

The device 100 may also include one or more accelerometers 168. FIGS. 1Aand 1B show an accelerometer 168 coupled to the peripherals interface118. Alternately, the accelerometer 168 may be coupled to an inputcontroller 160 in the I/O subsystem 106. The accelerometer 168 mayperform as described in U.S. Patent Publication No. 20050190059,“Acceleration-based Theft Detection System for Portable ElectronicDevices,” and U.S. Patent Publication No. 20060017692, “Methods AndApparatuses For Operating A Portable Device Based On An Accelerometer,”both of which are which are incorporated herein by reference. In someembodiments, information is displayed on the touch screen display in aportrait view or a landscape view based on an analysis of data receivedfrom the one or more accelerometers.

In some embodiments, the software components stored in memory 102 mayinclude an operating system 126, a communication module (or set ofinstructions) 128, a contact/motion module (or set of instructions) 130,a graphics module (or set of instructions) 132, a text input module (orset of instructions) 134, a Global Positioning System (GPS) module (orset of instructions) 135, and applications (or set of instructions) 136.

The operating system 126 (e.g., Darwin, RTXC, LINUX, UNIX, OS X,WINDOWS, or an embedded operating system such as VxWorks) includesvarious software components and/or drivers for controlling and managinggeneral system tasks (e.g., memory management, storage device control,power management, etc.) and facilitates communication between varioushardware and software components.

The communication module 128 facilitates communication with otherdevices over one or more external ports 124 and also includes varioussoftware components for handling data received by the RF circuitry 108and/or the external port 124. The external port 124 (e.g., UniversalSerial Bus (USB), FIREWIRE, etc.) is adapted for coupling directly toother devices or indirectly over a network (e.g., the Internet, wirelessLAN, etc.). In some embodiments, the external port is a multi-pin (e.g.,30-pin) connector that is the same as, or similar to and/or compatiblewith the 30-pin connector used on iPod (trademark of Apple Computer,Inc.) devices.

The contact/motion module 130 may detect contact with the touch screen112 (in conjunction with the display controller 156) and other touchsensitive devices (e.g., a touchpad or physical click wheel). Thecontact/motion module 130 includes various software components forperforming various operations related to detection of contact, such asdetermining if contact has occurred, determining if there is movement ofthe contact and tracking the movement across the touch screen 112, anddetermining if the contact has been broken (i.e., if the contact hasceased). Determining movement of the point of contact may includedetermining speed (magnitude), velocity (magnitude and direction),and/or an acceleration (a change in magnitude and/or direction) of thepoint of contact. These operations may be applied to single contacts(e.g., one finger contacts) or to multiple simultaneous contacts (e.g.,“multitouch”/multiple finger contacts). In some embodiments, thecontact/motion module 130 and the display controller 156 also detectscontact on a touchpad. In some embodiments, the contact/motion module130 and the controller 160 detects contact on a click wheel.

The graphics module 132 includes various known software components forrendering and displaying graphics on the touch screen 112, includingcomponents for changing the intensity of graphics that are displayed. Asused herein, the term “graphics” includes any object that can bedisplayed to a user, including without limitation text, web pages, icons(such as user-interface objects including soft keys), digital images,videos, animations and the like.

The text input module 134, which may be a component of graphics module132, provides soft keyboards for entering text in various applications(e.g., contacts 137, e-mail 140, IM 141, blogging 142, browser 147, andany other application that needs text input).

The GPS module 135 determines the location of the device and providesthis information for use in various applications (e.g., to telephone 138for use in location-based dialing, to camera 143 and/or blogger 142 aspicture/video metadata, and to applications that provide location-basedservices such as weather widgets, local yellow page widgets, andmap/navigation widgets).

The applications 136 may include the following modules (or sets ofinstructions), or a subset or superset thereof:

-   -   a contacts module 137 (sometimes called an address book or        contact list);    -   a telephone module 138;    -   a video conferencing module 139;    -   an e-mail client module 140;    -   an instant messaging (IM) module 141;    -   a blogging module 142;    -   a camera module 143 for still and/or video images;    -   an image management module 144;    -   a video player module 145;    -   a music player module 146;    -   a browser module 147;    -   a calendar module 148;    -   widget modules 149, which may include weather widget 149-1,        stocks widget 149-2, calculator widget 149-3, alarm clock widget        149-4, dictionary widget 149-5, and other widgets obtained by        the user, as well as user-created widgets 149-6;    -   widget creator module 150 for making user-created widgets 149-6;    -   search module 151;    -   video and music player module 152, which merges video player        module 145 and music player module 146;    -   notes module 153; and/or    -   map module 154.

Examples of other applications 136 that may be stored in memory 102include other word processing applications, JAVA-enabled applications,encryption, digital rights management, voice recognition, and voicereplication.

In conjunction with touch screen 112, display controller 156, contactmodule 130, graphics module 132, and text input module 134, the contactsmodule 137 may be used to manage an address book or contact list,including: adding name(s) to the address book; deleting name(s) from theaddress book; associating telephone number(s), e-mail address(es),physical address(es) or other information with a name; associating animage with a name; categorizing and sorting names; providing telephonenumbers or e-mail addresses to initiate and/or facilitate communicationsby telephone 138, video conference 139, e-mail 140, or IM 141; and soforth.

In conjunction with RF circuitry 108, audio circuitry 110, speaker 111,microphone 113, touch screen 112, display controller 156, contact module130, graphics module 132, and text input module 134, the telephonemodule 138 may be used to enter a sequence of characters correspondingto a telephone number, access one or more telephone numbers in theaddress book 137, modify a telephone number that has been entered, diala respective telephone number, conduct a conversation and disconnect orhang up when the conversation is completed. As noted above, the wirelesscommunication may use any of a plurality of communications standards,protocols and technologies.

In conjunction with RF circuitry 108, audio circuitry 110, speaker 111,microphone 113, touch screen 112, display controller 156, optical sensor164, optical sensor controller 158, contact module 130, graphics module132, text input module 134, contact list 137, and telephone module 138,the videoconferencing module 139 may be used to initiate, conduct, andterminate a video conference between a user and one or more otherparticipants.

In conjunction with RF circuitry 108, touch screen 112, displaycontroller 156, contact module 130, graphics module 132, and text inputmodule 134, the e-mail client module 140 may be used to create, send,receive, and manage e-mail. In conjunction with image management module144, the e-mail module 140 makes it very easy to create and send e-mailswith still or video images taken with camera module 143.

In conjunction with RF circuitry 108, touch screen 112, displaycontroller 156, contact module 130, graphics module 132, and text inputmodule 134, the instant messaging module 141 may be used to enter asequence of characters corresponding to an instant message, to modifypreviously entered characters, to transmit a respective instant message(for example, using a Short Message Service (SMS) or Multimedia MessageService (MMS) protocol for telephony-based instant messages or usingXMPP, SIMPLE, or IMPS for Internet-based instant messages), to receiveinstant messages and to view received instant messages. In someembodiments, transmitted and/or received instant messages may includegraphics, photos, audio files, video files and/or other attachments asare supported in a MMS and/or an Enhanced Messaging Service (EMS). Asused herein, “instant messaging” refers to both telephony-based messages(e.g., messages sent using SMS or MMS) and Internet-based messages(e.g., messages sent using XMPP, SIMPLE, or IMPS).

In conjunction with RF circuitry 108, touch screen 112, displaycontroller 156, contact module 130, graphics module 132, text inputmodule 134, image management module 144, and browsing module 147, theblogging module 142 may be used to send text, still images, video,and/or other graphics to a blog (e.g., the user's blog).

In conjunction with touch screen 112, display controller 156, opticalsensor(s) 164, optical sensor controller 158, contact module 130,graphics module 132, and image management module 144, the camera module143 may be used to capture still images or video (including a videostream) and store them into memory 102, modify characteristics of astill image or video, or delete a still image or video from memory 102.

In conjunction with touch screen 112, display controller 156, contactmodule 130, graphics module 132, text input module 134, and cameramodule 143, the image management module 144 may be used to arrange,modify or otherwise manipulate, label, delete, present (e.g., in adigital slide show or album), and store still and/or video images.

In conjunction with touch screen 112, display controller 156, contactmodule 130, graphics module 132, audio circuitry 110, and speaker 111,the video player module 145 may be used to display, present or otherwiseplay back videos (e.g., on the touch screen or on an external, connecteddisplay via external port 124).

In conjunction with touch screen 112, display system controller 156,contact module 130, graphics module 132, audio circuitry 110, speaker111, RF circuitry 108, and browser module 147, the music player module146 allows the user to download and play back recorded music and othersound files stored in one or more file formats, such as MP3 or AACfiles. In some embodiments, the device 100 may include the functionalityof an MP3 player, such as an iPod (trademark of Apple Computer, Inc.).

In conjunction with RF circuitry 108, touch screen 112, display systemcontroller 156, contact module 130, graphics module 132, and text inputmodule 134, the browser module 147 may be used to browse the Internet,including searching, linking to, receiving, and displaying web pages orportions thereof, as well as attachments and other files linked to webpages. Embodiments of user interfaces and associated processes usingbrowser module 147 are described further below.

In conjunction with RF circuitry 108, touch screen 112, display systemcontroller 156, contact module 130, graphics module 132, text inputmodule 134, e-mail module 140, and browser module 147, the calendarmodule 148 may be used to create, display, modify, and store calendarsand data associated with calendars (e.g., calendar entries, to do lists,etc.).

In conjunction with RF circuitry 108, touch screen 112, display systemcontroller 156, contact module 130, graphics module 132, text inputmodule 134, and browser module 147, the widget modules 149 aremini-applications that may be downloaded and used by a user (e.g.,weather widget 149-1, stocks widget 149-2, calculator widget 149-3,alarm clock widget 149-4, and dictionary widget 149-5) or created by theuser (e.g., user-created widget 149-6). In some embodiments, a widgetincludes an HTML (Hypertext Markup Language) file, a CSS (CascadingStyle Sheets) file, and a JavaScript file. In some embodiments, a widgetincludes an XML (Extensible Markup Language) file and a JavaScript file(e.g., Yahoo! Widgets).

In conjunction with RF circuitry 108, touch screen 112, display systemcontroller 156, contact module 130, graphics module 132, text inputmodule 134, and browser module 147, the widget creator module 150 may beused by a user to create widgets (e.g., turning a user-specified portionof a web page into a widget).

In conjunction with touch screen 112, display system controller 156,contact module 130, graphics module 132, and text input module 134, thesearch module 151 may be used to search for text, music, sound, image,video, and/or other files in memory 102 that match one or more searchcriteria (e.g., one or more user-specified search terms).

In conjunction with touch screen 112, display controller 156, contactmodule 130, graphics module 132, and text input module 134, the notesmodule 153 may be used to create and manage notes, to do lists, and thelike.

In conjunction with RF circuitry 108, touch screen 112, display systemcontroller 156, contact module 130, graphics module 132, text inputmodule 134, GPS module 135, and browser module 147, the map module 154may be used to receive, display, modify, and store maps and dataassociated with maps (e.g., driving directions; data on stores and otherpoints of interest at or near a particular location; and otherlocation-based data).

Each of the above identified modules and applications correspond to aset of instructions for performing one or more functions describedabove. These modules (i.e., sets of instructions) need not beimplemented as separate software programs, procedures or modules, andthus various subsets of these modules may be combined or otherwisere-arranged in various embodiments. For example, video player module 145may be combined with music player module 146 into a single module (e.g.,video and music player module 152, FIG. 1B). In some embodiments, memory102 may store a subset of the modules and data structures identifiedabove. Furthermore, memory 102 may store additional modules and datastructures not described above.

In some embodiments, the device 100 is a device where operation of apredefined set of functions on the device is performed exclusivelythrough a touch screen 112 and/or a touchpad. By using a touch screenand/or a touchpad as the primary input/control device for operation ofthe device 100, the number of physical input/control devices (such aspush buttons, dials, and the like) on the device 100 may be reduced.

The predefined set of functions that may be performed exclusivelythrough a touch screen and/or a touchpad include navigation between userinterfaces. In some embodiments, the touchpad, when touched by the user,navigates the device 100 to a main, home, or root menu from any userinterface that may be displayed on the device 100. In such embodiments,the touchpad may be referred to as a “menu button.” In some otherembodiments, the menu button may be a physical push button or otherphysical input/control device instead of a touchpad.

FIG. 2 illustrates a portable multifunction device 100 having a touchscreen 112 in accordance with some embodiments. The touch screen maydisplay one or more graphics within user interface (UI) 200. In thisembodiment, as well as others described below, a user may select one ormore of the graphics by making contact or touching the graphics, forexample, with one or more fingers 202 (not drawn to scale in thefigure). In some embodiments, selection of one or more graphics occurswhen the user breaks contact with the one or more graphics. In someembodiments, the contact may include a gesture, such as one or moretaps, one or more swipes (from left to right, right to left, upwardand/or downward) and/or a rolling of a finger (from right to left, leftto right, upward and/or downward) that has made contact with the device100. In some embodiments, inadvertent contact with a graphic may notselect the graphic. For example, a swipe gesture that sweeps over anapplication icon may not select the corresponding application when thegesture corresponding to selection is a tap.

The device 100 may also include one or more physical buttons, such as“home” or menu button 204. As described previously, the menu button 204may be used to navigate to any application 136 in a set of applicationsthat may be executed on the device 100. Alternatively, in someembodiments, the menu button is implemented as a soft key in a GUI intouch screen 112.

In one embodiment, the device 100 includes a touch screen 112, a menubutton 204, a push button 206 for powering the device on/off and lockingthe device, volume adjustment button(s) 208, a Subscriber IdentityModule (SIM) card slot 210, a head set jack 212, and a docking/chargingexternal port 124. The push button 206 may be used to turn the poweron/off on the device by depressing the button and holding the button inthe depressed state for a predefined time interval; to lock the deviceby depressing the button and releasing the button before the predefinedtime interval has elapsed; and/or to unlock the device or initiate anunlock process. In an alternative embodiment, the device 100 also mayaccept verbal input for activation or deactivation of some functionsthrough the microphone 113.

Attention is now directed towards embodiments of user interfaces (“UI”)and associated processes that may be implemented on a portablemultifunction device 100.

FIG. 3 illustrates an exemplary user interface for unlocking a portableelectronic device in accordance with some embodiments. In someembodiments, user interface 300 includes the following elements, or asubset or superset thereof:

-   -   Unlock image 302 that is moved with a finger gesture to unlock        the device;    -   Arrow 304 that provides a visual cue to the unlock gesture;    -   Channel 306 that provides additional cues to the unlock gesture;    -   Time 308;    -   Day 310;    -   Date 312; and    -   Wallpaper image 314.

In some embodiments, the device detects contact with the touch-sensitivedisplay (e.g., a user's finger making contact on or near the unlockimage 302) while the device is in a user-interface lock state. Thedevice moves the unlock image 302 in accordance with the contact. Thedevice transitions to a user-interface unlock state if the detectedcontact corresponds to a predefined gesture, such as moving the unlockimage across channel 306. Conversely, the device maintains theuser-interface lock state if the detected contact does not correspond tothe predefined gesture. As noted above, processes that use gestures onthe touch screen to unlock the device are described in U.S. patentapplication Ser. No. 11/322,549, “Unlocking A Device By PerformingGestures On An Unlock Image,” filed Dec. 23, 2005, and Ser. No.11/322,550, “Indication Of Progress Towards Satisfaction Of A User InputCondition,” filed Dec. 23, 2005, which are hereby incorporated byreference.

FIGS. 4A and 4B illustrate exemplary user interfaces for a menu ofapplications on a portable multifunction device in accordance with someembodiments. In some embodiments, user interface 400A includes thefollowing elements, or a subset or superset thereof:

-   -   Signal strength indicator(s) 402 for wireless communication(s),        such as cellular and Wi-Fi signals;    -   Time 404;    -   Battery status indicator 406;    -   Tray 408 with icons for frequently used applications, such as        one or more of the following:        -   Phone 138, which may include an indicator 414 of the number            of missed calls or voicemail messages;        -   E-mail client 140, which may include an indicator 410 of the            number of unread e-mails;        -   Browser 147; and        -   Music player 146; and    -   Icons for other applications, such as one or more of the        following:        -   IM 141;        -   Image management 144;        -   Camera 143;        -   Video player 145;        -   Weather 149-1;        -   Stocks 149-2;        -   Blog 142;        -   Calendar 148;        -   Calculator 149-3;        -   Alarm clock 149-4;        -   Dictionary 149-5; and        -   User-created widget 149-6.

In some embodiments, user interface 400B includes the followingelements, or a subset or superset thereof:

-   -   402, 404, 406, 141, 148, 144, 143, 149-3, 149-2, 149-1, 149-4,        410, 414, 138, 140, and 147, as described above;    -   Map 154;    -   Notes 153;    -   Settings 412, which provides access to settings for the device        100 and its various applications 136, as described further        below; and    -   Video and music player module 152, also referred to as iPod        (trademark of Apple Computer, Inc.) module 152.

In some embodiments, UI 400A or 400B displays all of the availableapplications 136 on one screen so that there is no need to scrollthrough a list of applications (e.g., via a scroll bar). In someembodiments, as the number of applications increase, the iconscorresponding to the applications may decrease in size so that allapplications may be displayed on a single screen without scrolling. Insome embodiments, having all applications on one screen and a menubutton enables a user to access any desired application with at most twoinputs, such as activating the menu button 204 and then activating thedesired application (e.g., by a tap or other finger gesture on the iconcorresponding to the application).

FIGS. 5A-5M illustrate exemplary user interfaces for a browser inaccordance with some embodiments.

In some embodiments, user interfaces 3900A-3900M (in FIGS. 5A-5M,respectively) include the following elements, or a subset or supersetthereof:

-   -   402, 404, and 406, as described above;    -   Previous page icon 3902 that when activated (e.g., by a finger        tap on the icon) initiates display of the previous web page;    -   Web page name 3904;    -   Next page icon 3906 that when activated (e.g., by a finger tap        on the icon) initiates display of the next web page;    -   URL (Uniform Resource Locator) entry box 3908 for inputting URLs        of web pages;    -   Refresh icon 3910 that when activated (e.g., by a finger tap on        the icon) initiates a refresh of the web page;    -   Web page 3912 or other structured document, which is made of        blocks 3914 of text content and other graphics (e.g., images and        inline multimedia);    -   Settings icon 3916 that when activated (e.g., by a finger tap on        the icon) initiates display of a settings menu for the browser;    -   Bookmarks icon 3918 that when activated (e.g., by a finger tap        on the icon) initiates display of a bookmarks list or menu for        the browser;    -   Add bookmark icon 3920 that when activated (e.g., by a finger        tap on the icon) initiates display of a UI for adding bookmarks        (e.g., UI 3900F, FIG. 5F, which like other UIs and pages, can be        displayed in either portrait or landscape view);    -   New window icon 3922 that when activated (e.g., by a finger tap        on the icon) initiates display of a UI for adding new windows to        the browser (e.g., UI 3900G, FIG. 5G);    -   Vertical bar 3962 (FIG. 5H) for the web page 3912 or other        structured document that helps a user understand what portion of        the web page 3912 or other structured document is being        displayed;    -   Horizontal bar 3964 (FIG. 5H) for the web page 3912 or other        structured document that helps a user understand what portion of        the web page 3912 or other structured document is being        displayed;    -   Share icon 3966 that when activated (e.g., by a finger tap on        the icon) initiates display of a UI for sharing information with        other users (e.g., UI 3900K, FIG. 5K);    -   URL clear icon 3970 (FIG. 5I) that when activated (e.g., by a        finger tap on the icon) clears any input in URL entry box 3908;    -   Search term entry box 3972 (FIG. 5I) for inputting search terms        for web searches;    -   URL suggestion list 3974 that displays URLs that match the input        in URL entry box 3908 (FIG. 5I), wherein activation of a        suggested URL (e.g., by a finger tap on the suggested URL)        initiates retrieval of the corresponding web page;    -   URL input keyboard 3976 (FIGS. 5I and 5M) with period key 3978,        backslash key 3980, and “.com” key 3982 that make it easier to        enter common characters in URLs;    -   Search term clear icon 3984 that when activated (e.g., by a        finger tap on the icon) clears any input in search term entry        box 3972;    -   Email link icon 3986 (FIG. 5K) that when activated (e.g., by a        finger tap or other gesture on the icon) prepares an email that        contains a link to be shared with one or more other users;    -   Email content icon 3988 (FIG. 5K) that when activated (e.g., by        a finger tap or other gesture on the icon) prepares an email        that contains content to be shared with one or more other users;    -   IM link icon 3990 (FIG. 5K) that when activated (e.g., by a        finger tap or other gesture on the icon) prepares an IM that        contains a link to be shared with one or more other users; and    -   Cancel icon 3992 (FIG. 5K) that when activated (e.g., by a        finger tap or other gesture on the icon) cancels the sharing UI        (e.g., UI 3900K, FIG. 5K) and displays the previous UI.

In some embodiments, in response to a predefined gesture by the user ona block 3914 (e.g., a single tap gesture or a double tap gesture), theblock is enlarged and centered (or substantially centered) in the webpage display. For example, in response to a single tap gesture 3923 onblock 3914-5, block 3914-5 may be enlarged and centered in the display,as shown in UI 3900C, FIG. 5C. In some embodiments, the width of theblock is scaled to fill the touch screen display. In some embodiments,the width of the block is scaled to fill the touch screen display with apredefined amount of padding along the sides of the display. In someembodiments, a zooming animation of the block is displayed duringenlargement of the block. Similarly, in response to a single tap gesture3925 on block 3914-2, block 3914-2 may be enlarged with a zoominganimation and two-dimensionally scrolled to the center of the display(not shown).

In some embodiments, the device analyzes the render tree of the web page3912 to determine the blocks 3914 in the web page. In some embodiments,a block 3914 corresponds to a render node that is: a replaced inline; ablock; an inline block; or an inline table.

In some embodiments, in response to the same predefined gesture by theuser on a block 3914 (e.g., a single tap gesture or a double tapgesture) that is already enlarged and centered, the enlargement and/orcentering is substantially or completely reversed. For example, inresponse to a single tap gesture 3929 (FIG. 5C) on block 3914-5, the webpage image may zoom out and return to UI 3900A, FIG. 5A.

In some embodiments, in response to a predefined gesture (e.g., a singletap gesture or a double tap gesture) by the user on a block 3914 that isalready enlarged but not centered, the block is centered (orsubstantially centered) in the web page display. For example, inresponse to a single tap gesture 3927 (FIG. 5C) on block 3914-4, block3914-4 may be centered (or substantially centered) in the web pagedisplay. Similarly, in response to a single tap gesture 3935 (FIG. 5C)on block 3914-6, block 3914-6 may be centered (or substantiallycentered) in the web page display. Thus, for a web page display that isalready enlarged, in response to a predefined gesture, the device maydisplay in an intuitive manner a series of blocks that the user wants toview. This same gesture may initiate different actions in differentcontexts (e.g., (1) zooming and/or enlarging in combination withscrolling when the web page is reduced in size, UI 3900A and (2)reversing the enlargement and/or centering if the block is alreadycentered and enlarged).

In some embodiments, in response to a multi-touch 3931 and 3933de-pinching gesture by the user (FIG. 5C), the web page may be enlarged.Conversely, in response to a multi-touch pinching gesture by the user,the web page may be reduced.

In some embodiments, in response to a substantially vertical upward (ordownward) swipe gesture by the user, the web page (or, more generally,other electronic documents) may scroll one-dimensionally upward (ordownward) in the vertical direction. For example, in response to anupward swipe gesture 3937 by the user that is within a predeterminedangle (e.g., 27°) of being perfectly vertical, the web page may scrollone-dimensionally upward in the vertical direction.

Conversely, in some embodiments, in response to a swipe gesture that isnot within a predetermined angle (e.g., 27°) of being perfectlyvertical, the web page may scroll two-dimensionally (i.e., withsimultaneous movement in both the vertical and horizontal directions).For example, in response to an upward swipe gesture 3939 (FIG. 5C) bythe user that is not within a predetermined angle (e.g., 27°) of beingperfectly vertical, the web page may scroll two-dimensionally along thedirection of the swipe 3939.

In some embodiments, in response to a multi-touch 3941 and 3943 rotationgesture by the user (FIG. 5C), the web page may be rotated exactly 90°(UI 3900D, FIG. 5D) for landscape viewing, even if the amount ofrotation in the multi-touch 3941 and 3943 rotation gesture issubstantially different from 90°. Similarly, in response to amulti-touch 3945 and 3947 rotation gesture by the user (UI 3900D, FIG.5D), the web page may be rotated exactly 90° for portrait viewing, evenif the amount of rotation in the multi-touch 3945 and 3947 rotationgesture is substantially different from 90°.

Thus, in response to imprecise gestures by the user, precise movementsof graphics occur. The device behaves in the manner desired by the userdespite inaccurate input by the user. Also, note that the gesturesdescribed for UI 3900C, which has a portrait view, are also applicableto UIs with a landscape view (e.g., UI 3900D, FIG. 5D) so that the usercan choose whichever view the user prefers for web browsing.

FIGS. 6A-6C are flow diagrams illustrating a process 6000 for displayingstructured electronic documents such as web pages on a portableelectronic device with a touch screen display (e.g., device 100) inaccordance with some embodiments. The portable electronic devicedisplays at least a portion of a structured electronic document on thetouch screen display. The structured electronic document comprises aplurality of boxes of content (e.g., blocks 3914, FIG. 5A) (6006).

In some embodiments, the plurality of boxes is defined by a style sheetlanguage. In some embodiments, the style sheet language is a cascadingstyle sheet language. In some embodiments, the structured electronicdocument is a web page (e.g., web page 3912, FIG. 5A). In someembodiments, the structured electronic document is an HTML or XMLdocument.

In some embodiments, displaying at least a portion of the structuredelectronic document comprises scaling the document width to fit withinthe touch screen display width independent of the document length(6008).

In some embodiments, the touch screen display is rectangular with ashort axis and a long axis (also called the minor axis and major axis);the display width corresponds to the short axis (or minor axis) when thestructured electronic document is seen in portrait view (e.g., FIG. 5C);and the display width corresponds to the long axis (or major axis) whenthe structured electronic document is seen in landscape view (e.g., FIG.5D).

In some embodiments, prior to displaying at least a portion of astructured electronic document, borders, margins, and/or paddings aredetermined for the plurality of boxes (6002) and adjusted for display onthe touch screen display (6004). In some embodiments, all boxes in theplurality of boxes are adjusted. In some embodiments, just the first boxis adjusted. In some embodiments, just the first box and boxes adjacentto the first box are adjusted.

A first gesture is detected at a location on the displayed portion ofthe structured electronic document (e.g., gesture 3923, FIG. 5A) (6010).In some embodiments, the first gesture is a finger gesture. In someembodiments, the first gesture is a stylus gesture.

In some embodiments, the first gesture is a tap gesture. In someembodiments, the first gesture is a double tap with a single finger, adouble tap with two fingers, a single tap with a single finger, or asingle tap with two fingers.

A first box (e.g., Block 5 3914-5, FIG. 5A) in the plurality of boxes isdetermined at the location of the first gesture (6012). In someembodiments, the structured electronic document has an associated rendertree with a plurality of nodes and determining the first box at thelocation of the first gesture comprises: traversing down the render treeto determine a first node in the plurality of nodes that corresponds tothe detected location of the first gesture (6014); traversing up therender tree from the first node to a closest parent node that contains alogical grouping of content (6016); and identifying contentcorresponding to the closest parent node as the first box (6018). Insome embodiments, the logical grouping of content comprises a paragraph,an image, a plugin object, or a table. In some embodiments, the closestparent node is a replaced inline, a block, an inline block, or an inlinetable.

The first box is enlarged and substantially centered on the touch screendisplay (e.g., Block 5 3914-5, FIG. 5C) (6020). In some embodiments,enlarging and substantially centering comprises simultaneously zoomingand translating the first box on the touch screen display (6022). Insome embodiments, enlarging comprises expanding the first box so thatthe width of the first box is substantially the same as the width of thetouch screen display (6024).

In some embodiments, text in the enlarged first box is resized to meetor exceed a predetermined minimum text size on the touch screen display(6026). In some embodiments, the text resizing comprises: determining ascale factor by which the first box will be enlarged (6028); dividingthe predetermined minimum text size on the touch screen display by thescaling factor to determine a minimum text size for text in the firstbox (6030); and if a text size for text in the first box is less thanthe determined minimum text size, increasing the text size for text inthe first box to at least the determined minimum text size (6032). Insome embodiments, the first box has a width; the display has a displaywidth; and the scale factor is the display width divided by the width ofthe first box prior to enlarging. In some embodiments, the resizingoccurs during the enlarging. In some embodiments, the resizing occursafter the enlarging.

For example, suppose the predetermined minimum text size is an 18-pointfont and the scale factor is determined to be two. In that case, theminimum text size for text in the first box is 18 divided by 2, or 9. Iftext in the first box is in a 10-point font, its text size is notincreased, because 10 is greater than the 9-point minimum. Once thescale factor is applied, the text will be displayed in a 20-point font,which is greater than the predetermined minimum text size of 18. If,however, text in the first box is in an 8-point font, application of thescale factor would cause the text to be displayed in a 16-point font,which is less than the predetermined minimum text size of 18. Therefore,since 8 is less than 9, the text size is increased to at least a 9-pointfont and displayed in at least an 18-point font after application of thescale factor.

In some embodiments, text in the structured electronic document isresized to meet or exceed a predetermined minimum text size on the touchscreen display (6026; FIG. 6B). In some embodiments, the text resizingcomprises: determining a scale factor by which the first box will beenlarged (6028); dividing the predetermined minimum text size on thetouch screen display by the scaling factor to determine a minimum textsize for text in the structured electronic document (6030); and if atext size for text in the structured electronic document is less thanthe determined minimum text size, increasing the text size for text inthe structured electronic document to at least the determined minimumtext size (6032). In some embodiments, the text resizing comprises:identifying boxes containing text in the plurality of boxes; determininga scale factor by which the first box will be enlarged; dividing thepredetermined minimum text size on the touch screen display by thescaling factor to determine a minimum text size for text in thestructured electronic document; and for each identified box containingtext, if a text size for text in the identified box is less than thedetermined minimum text size, increasing the text size for text in theidentified box to at least the determined minimum text size andadjusting the size of the identified box to accommodate the resizedtext.

In some embodiments, a second gesture (e.g., gesture 3929, FIG. 5C) isdetected on the enlarged first box (6034). In response to detecting thesecond gesture, the displayed portion of the structured electronicdocument is reduced in size (6036). In some embodiments, the first boxreturns to its size prior to being enlarged (6038).

In some embodiments, the second gesture and the first gesture are thesame type of gesture. In some embodiments, the second gesture is afinger gesture. In some embodiments, the second gesture is a stylusgesture.

In some embodiments, the second gesture is a tap gesture. In someembodiments, the second gesture is a double tap with a single finger, adouble tap with two fingers, a single tap with a single finger, or asingle tap with two fingers.

In some embodiments, while the first box is enlarged, a third gesture(e.g., gesture 3927 or gesture 3935, FIG. 5C) is detected on a secondbox other than the first box (6040). In response to detecting the thirdgesture, the second box is substantially centered on the touch screendisplay (6042). In some embodiments, the third gesture and the firstgesture are the same type of gesture. In some embodiments, the thirdgesture is a finger gesture. In some embodiments, the third gesture is astylus gesture.

In some embodiments, the third gesture is a tap gesture. In someembodiments, the third gesture is a double tap with a single finger, adouble tap with two fingers, a single tap with a single finger, or asingle tap with two fingers.

In some embodiments, a swipe gesture (e.g., gesture 3937 or gesture3939, FIG. 5C) is detected on the touch screen display (6044; FIG. 6C).In response to detecting the swipe gesture, the displayed portion of thestructured electronic document is translated on the touch screen display(6046). In some embodiments, the translating comprises vertical,horizontal, or diagonal movement of the structured electronic documenton the touch screen display (6048). In some embodiments, the swipegesture is a finger gesture. In some embodiments, the swipe gesture is astylus gesture.

In some embodiments, a fifth gesture (e.g., multi-touch gesture3941/3943, FIG. 5C) is detected on the touch screen display (6050). Inresponse to detecting the fifth gesture, the displayed portion of thestructured electronic document is rotated on the touch screen display by90° (6052). In some embodiments, the fifth gesture is a finger gesture.In some embodiments, the fifth gesture is a multifinger gesture. In someembodiments, the fifth gesture is a twisting gesture.

In some embodiments, a change in orientation of the device is detected(6054). For example, the one or more accelerometers 168 (FIGS. 1A-1B)detect a change in orientation of the device. In response to detectingthe change in orientation of the device, the displayed portion of thestructured electronic document is rotated on the touch screen display by90° (6056).

In some embodiments, a multi-finger de-pinch gesture (e.g., multi-touchgesture 3931/3933, FIG. 5C) is detected on the touch screen display(6058). In response to detecting the multi-finger de-pinch gesture, aportion of the displayed portion of the structured electronic documentis enlarged on the touch screen display in accordance with a position ofthe multi-finger de-pinch gesture and an amount of finger movement inthe multi-finger de-pinch gesture (6060).

While the content display process 6000 described above includes a numberof operations that appear to occur in a specific order, it should beapparent that the process 6000 can include more or fewer operations,which can be executed serially or in parallel (e.g., using parallelprocessors or a multi-threading environment), an order of two or moreoperations may be changed and/or two or more operations may be combinedinto a single operation.

A graphical user interface (e.g., UI 3900A, FIG. 5A) on a portableelectronic device with a touch screen display comprises at least aportion of a structured electronic document (e.g., web page 3912, FIG.5A). The structured electronic document comprises a plurality of boxesof content (e.g., blocks 3914, FIG. 5A). In response to detecting afirst gesture (e.g., gesture 3923, FIG. 5A) at a location on the portionof the structured electronic document, a first box (e.g., Block 53914-5, FIG. 5A) in the plurality of boxes at the location of the firstgesture is determined and the first box is enlarged and substantiallycentered on the touch screen display (e.g., Block 5 3914-5, FIG. 5C).

In some embodiments, in response to a tap or other predefined usergesture on URL entry box 3908, the touch screen displays an enlargedentry box 3926 and a keyboard 616 (e.g., UI 3900B, FIG. 5B in portraitviewing and UI 3900E, FIG. 5E in landscape viewing). In someembodiments, the touch screen also displays:

-   -   Contextual clear icon 3928 that when activated (e.g., by a        finger tap on the icon) initiates deletion of all text in entry        box 3926;    -   a search icon 3930 that when activated (e.g., by a finger tap on        the icon) initiates an Internet search using the search terms        input in box 3926; and    -   Go to URL icon 3932 that when activated (e.g., by a finger tap        on the icon) initiates acquisition of the web page with the URL        input in box 3926;

Thus, the same entry box 3926 may be used for inputting both searchterms and URLs. In some embodiments, whether or not clear icon 3928 isdisplayed depends on the context.

UI 3900G (FIG. 5G) is a UI for adding new windows to an application,such as the browser 147. UI 3900G displays an application (e.g., thebrowser 147), which includes a displayed window (e.g., web page 3912-2)and at least one hidden window (e.g., web pages 3912-1 and 3934-3 andpossibly other web pages that are completely hidden off-screen). UI3900G also displays an icon for adding windows to the application (e.g.,new window or new page icon 3936). In response to detecting activationof the icon 3936 for adding windows, the browser adds a window to theapplication (e.g., a new window for a new web page 3912).

In response to detecting a gesture on the touch screen display, adisplayed window in the application is moved off the display and ahidden window is moved onto the display. For example, in response todetecting a tap gesture 3949 on the left side of the screen, the windowwith web page 3912-2 is moved partially or fully off-screen to theright, the window with web page 3912-3 is moved completely off-screen,partially hidden window with web page 3912-1 is moved to the center ofthe display, and another completely hidden window with a web page (e.g.,3912-0) may be moved partially onto the display. Alternatively,detection of a left-to-right swipe gesture 3951 may achieve the sameeffect.

Conversely, in response to detecting a tap gesture 3953 on the rightside of the screen, the window with web page 3912-2 is moved partiallyor fully off-screen to the left, the window with web page 3912-1 ismoved completely off-screen, partially hidden window with web page3912-3 is moved to the center of the display, and another completelyhidden window with a web page (e.g., 3912-4) may be moved partially ontothe display. Alternatively, detection of a right-to-left swipe gesture3951 may achieve the same effect.

In some embodiments, in response to a tap or other predefined gesture ona delete icon 3934, the corresponding window 3912 is deleted. In someembodiments, in response to a tap or other predefined gesture on Doneicon 3938, the window in the center of the display (e.g., 3912-2) isenlarged to fill the screen.

Additional description of adding windows to an application can be foundin U.S. patent application Ser. No. 11/620,647, “Method, System, AndGraphical User Interface For Viewing Multiple Application Windows,”filed Jan. 5, 2007, the content of which is hereby incorporated byreference.

FIGS. 7A-7F illustrate exemplary user interfaces for playing an item ofinline multimedia content in accordance with some embodiments.

In some embodiments, user interfaces 4000A-4000F (in FIGS. 7A-7F,respectively) include the following elements, or a subset or supersetthereof:

-   -   402, 404, 406, 3902, 3906, 3910, 3912, 3918, 3920, 3922, as        described above;    -   inline multimedia content 4002, such as QuickTime content        (4002-1), Windows Media content (4002-2), or Flash content        (4002-3);    -   other types of content 4004 in the structured document, such as        text;    -   Exit icon 4006 that when activated (e.g., by a finger tap on the        icon) initiates exiting the inline multimedia content player UI        (e.g., UI 4000B or 4000F) and returning to another UI (e.g., UI        4000A, FIG. 7A);    -   Lapsed time 4008 that shows how much of the inline multimedia        content 4002 has been played, in units of time;    -   Progress bar 4010 that indicates what fraction of the inline        multimedia content 4002 has been played and that may be used to        help scroll through the inline multimedia content in response to        a user gesture;    -   Remaining time 4012 that shows how much of the inline multimedia        content 4002 remains to be played, in units of time;    -   Downloading icon 4014 that indicates when inline multimedia        content 4002 is being downloaded or streamed to the device;    -   Fast Reverse/Skip Backwards icon 4016 that when activated (e.g.,        by a finger tap on the icon) initiates reversing or skipping        backwards through the inline multimedia content 4002;    -   Play icon 4018 that when activated (e.g., by a finger tap 4026        (FIG. 7C) on the icon) initiates playing the inline multimedia        content 4002, either from the beginning or from where the inline        multimedia content was paused;    -   Fast Forward/Skip Forward icon 4020 that initiates forwarding or        skipping forwards through the inline multimedia content 4002;    -   Volume adjustment slider icon 4022 that that when activated        (e.g., by a finger tap on the icon) initiates adjustment of the        volume of the inline multimedia content 4002; and    -   Pause icon 4024 that when activated (e.g., by a finger tap on        the icon) initiates pausing the inline multimedia content 4002.

FIG. 8 is a flow diagram illustrating a process 8000 for displayinginline multimedia content on a portable electronic device with a touchscreen display (e.g., device 100) in accordance with some embodiments.The portable electronic device displays at least a portion of astructured electronic document on the touch screen display (8002). Thestructured electronic document comprises content (e.g., content 4002 and4004, FIG. 7A). In some embodiments, the structured electronic documentis a web page (e.g., web page 3912). In some embodiments, the structuredelectronic document is an HTML or XML document.

A first gesture (e.g., gesture 4028, FIG. 7A) is detected on an item ofinline multimedia content (e.g., content 4002-1, FIG. 7A) in thedisplayed portion of the structured electronic document (8004). In someembodiments, the inline multimedia content comprises video and/or audiocontent. In some embodiments, the content can be played with aQuickTime, Windows Media, or Flash plugin.

In response to detecting the first gesture, the item of inlinemultimedia content is enlarged on the touch screen display and othercontent (e.g., content 4004 and other content 4002 besides 4002-1, FIG.7A) in the structured electronic document besides the enlarged item ofinline multimedia content ceases to be displayed (e.g., UI 4000B, FIG.7B or UI 4000F, FIG. 7F) (8006).

In some embodiments, enlarging the item of inline multimedia contentcomprises animated zooming in on the item. In some embodiments,enlarging the item of inline multimedia content comprises simultaneouslyzooming and translating the item of inline multimedia content on thetouch screen display. In some embodiments, enlarging the item of inlinemultimedia content comprises rotating the item of inline multimediacontent by 90° (e.g., from UI 4000A, FIG. 7A to UI 4000B, FIG. 7B).

In some embodiments, the item of inline multimedia content has a fullsize; the touch screen display has a size; and enlarging the item ofinline multimedia content comprises enlarging the item of inlinemultimedia content to the smaller of the full size of the item and thesize of the touch screen display.

In some embodiments, enlarging the item of inline multimedia contentcomprises expanding the item of inline multimedia content so that thewidth of the item of inline multimedia content is substantially the sameas the width of the touch screen display (e.g., UI 4000B, FIG. 7B or UI4000F, FIG. 7F).

In some embodiments, ceasing to display other content in the structuredelectronic document besides the item of inline multimedia contentcomprises fading out the other content in the structured electronicdocument besides the item of inline multimedia content.

While the enlarged item of inline multimedia content is displayed, asecond gesture is detected on the touch screen display (e.g., gesture4030, FIG. 7B) (8008).

In response to detecting the second gesture, one or more playbackcontrols for playing the enlarged item of inline multimedia content aredisplayed (8010). In some embodiments, the one or more playback controlscomprise a play icon (e.g., icon 4018, FIG. 7C), a pause icon (e.g.,icon 4024, FIG. 7E), a sound volume icon (e.g., icon 4022), and/or aplayback progress bar icon (e.g., icon 4010).

In some embodiments, displaying one or more playback controls comprisesdisplaying one or more playback controls on top of the enlarged item ofinline multimedia content (e.g., playback controls 4016, 4018, 4020, and4022 are on top of enlarged inline multimedia content 4002-1 in FIG.7C). In some embodiments, the one or more playback controls aresuperimposed on top of the enlarged item of inline multimedia content.In some embodiments, the one or more playback controls aresemitransparent.

In some embodiments, an instruction in the structured electronicdocument to automatically start playing the item of inline multimediacontent is overridden, which gives the device time to download more ofthe selected inline multimedia content prior to starting playback.

A third gesture is detected on one of the playback controls (e.g.,gesture 4026 on play icon 4018, FIG. 7C) (8012).

In response to detecting the third gesture, the enlarged item of inlinemultimedia content is played (8014). In some embodiments, playing theenlarged item of inline multimedia content comprises playing theenlarged item of inline multimedia content with a plugin for a contenttype associated with the item of inline multimedia content.

In some embodiments, while the enlarged item of inline multimediacontent is played, the one or more playback controls cease to bedisplayed (e.g., FIG. 7D, which no longer displays playback controls4016, 4018, 4020, and 4022, but still shows 4006, 4008, 4010, and 4012).In some embodiments, all of the playback controls cease to be displayed.In some embodiments, ceasing to display the one or more playbackcontrols comprises fading out the one or more playback controls. In someembodiments, the display of the one or more playback controls is ceasedafter a predetermined time. In some embodiments, the display of the oneor more playback controls is ceased after no contact is detected withthe touch screen display for a predetermined time.

In some embodiments, a fourth gesture is detected on the touch screendisplay (8016). In response to detecting the fourth gesture, at leastthe portion of the structured electronic document is displayed again(e.g., FIG. 7A) (8018). In some embodiments, the fourth gesturecomprises a tap gesture on a playback completion icon, such as a doneicon (e.g., gesture 4032 on done icon 4006, FIG. 7D). In someembodiments, the item of inline multimedia content returns to its sizeprior to being enlarged.

In some embodiments, the first, second, and third gestures are fingergestures. In some embodiments, the first, second, and third gestures arestylus gestures.

In some embodiments, the first, second, and third gestures are tapgestures. In some embodiments, the tap gesture is a double tap with asingle finger, a double tap with two fingers, a single tap with a singlefinger, or a single tap with two fingers.

While the multimedia display process 8000 described above includes anumber of operations that appear to occur in a specific order, it shouldbe apparent that the process 8000 can include more or fewer operations,which can be executed serially or in parallel (e.g., using parallelprocessors or a multi-threading environment), an order of two or moreoperations may be changed and/or two or more operations may be combinedinto a single operation.

A graphical user interface on a portable electronic device with a touchscreen display comprises: at least a portion of a structured electronicdocument, wherein the structured electronic document comprises content;an item of inline multimedia content in the portion of the structuredelectronic document; and one or more playback controls. In response todetecting a first gesture on the item of inline multimedia content, theitem of inline multimedia content on the touch screen display isenlarged, and display of other content in the structured electronicdocument besides the enlarged item of inline multimedia content isceased. In response to detecting a second gesture on the touch screendisplay while the enlarged item of inline multimedia content isdisplayed, the one or more playback controls for playing the enlargeditem of inline multimedia content are displayed. In response todetecting a third gesture on one of the playback controls, the enlargeditem of inline multimedia content is played.

The foregoing description, for purpose of explanation, has beendescribed with reference to specific embodiments. However, theillustrative discussions above are not intended to be exhaustive or tolimit the invention to the precise forms disclosed. Many modificationsand variations are possible in view of the above teachings. Theembodiments were chosen and described in order to best explain theprinciples of the invention and its practical applications, to therebyenable others skilled in the art to best utilize the invention andvarious embodiments with various modifications as are suited to theparticular use contemplated.

What is claimed is:
 1. A portable electronic device, comprising: a touchscreen display; one or more processors; memory; and one or moreprograms, wherein the one or more programs are stored in the memory andconfigured to be executed by the one or more processors, the one or moreprograms including instructions for: displaying at least a portion of aweb page on the touch screen display, wherein the web page comprises aplurality of boxes of content; detecting a first gesture at a locationon the displayed portion of the web page; determining a first box in theplurality of boxes at the location of the first gesture; enlarging andtranslating the web page so that the first box is substantially centeredon the touch screen display; while the first box is enlarged, detectinga second gesture on a second box other than the first box; and, inresponse to detecting the second gesture, translating the web page sothat the second box is substantially centered on the touch screendisplay.
 2. The device of claim 1, including instructions for: prior todisplaying at least a portion of the web page, determining borders,margins, and/or paddings for the plurality of boxes that are specifiedin the web page; and adjusting the borders, margins, and/or paddings forthe plurality of boxes for display on the touch screen display.
 3. Thedevice of claim 1, wherein: the web page has a document width and adocument length; the touch screen display has a display width; anddisplaying at least a portion of the web page comprises scaling thedocument width to fit within the display width independent of thedocument length.
 4. The device of claim 3, wherein: the touch screendisplay is rectangular with a short axis and a long axis; the displaywidth corresponds to the short axis when the web page is seen inportrait view; and the display width corresponds to the long axis whenthe web page is seen in landscape view.
 5. The device of claim 1,wherein the plurality of boxes are defined by a style sheet language. 6.The device of claim 5, wherein the style sheet language is a cascadingstyle sheet language.
 7. The device of claim 1, wherein: the web pagehas an associated render tree with a plurality of nodes; and determiningthe first box at the location of the first gesture comprises: traversingdown the render tree to determine a first node in the plurality of nodesthat corresponds to the detected location of the first gesture;traversing up the render tree from the first node to a closest parentnode that contains a logical grouping of content; and identifyingcontent corresponding to the closest parent node as the first box. 8.The device of claim 7, wherein the logical grouping of content comprisesa paragraph, an image, a plugin object, or a table.
 9. The device ofclaim 7, wherein the closest parent node is a replaced inline, a block,an inline block, or an inline table.
 10. The device of claim 1, whereinenlarging and translating the web page comprises displaying at least aportion of the second box of the plurality of boxes of content on thetouch screen display.
 11. The device of claim 1, wherein enlargingcomprises expanding the first box so that the width of the first box issubstantially the same as the width of the touch screen display.
 12. Thedevice of claim 1, including instructions for resizing text in theenlarged first box to meet or exceed a predetermined minimum text sizeon the touch screen display.
 13. The device of claim 12, wherein thetext resizing comprises: determining a scale factor by which the firstbox will be enlarged; dividing the predetermined minimum text size onthe touch screen display by the scaling factor to determine a minimumtext size for text in the first box; and if a text size for text in thefirst box is less than the determined minimum text size, increasing thetext size for text in the first box to at least the determined minimumtext size.
 14. The device of claim 1, including instructions forresizing text in the web page to meet or exceed a predetermined minimumtext size on the touch screen display.
 15. The device of claim 14,wherein the text resizing comprises: determining a scale factor by whichthe first box will be enlarged; dividing the predetermined minimum textsize on the touch screen display by the scaling factor to determine aminimum text size for text in the web page; and if a text size for textin the web page is less than the determined minimum text size,increasing the text size for text in the web page to at least thedetermined minimum text size.
 16. The device of claim 14, wherein thetext resizing comprises: identifying boxes containing text in theplurality of boxes; determining a scale factor by which the first boxwill be enlarged; dividing the predetermined minimum text size on thetouch screen display by the scaling factor to determine a minimum textsize for text in the web page; and for each identified box containingtext, if a text size for text in the identified box is less than thedetermined minimum text size, increasing the text size for text in theidentified box to at least the determined minimum text size andadjusting the size of the identified box.
 17. The device of claim 1,including instructions for: detecting a third gesture on the enlargedsecond box; and in response to detecting the third gesture, reducing insize the displayed portion of the web page.
 18. The device of claim 1,including instructions for: detecting a swipe gesture on the touchscreen display; and in response to detecting the swipe gesture,translating the displayed portion of the web page on the touch screendisplay.
 19. The device of claim 1, including instructions for:detecting a fifth gesture on the touch screen display, in response todetecting the fifth gesture, rotating the displayed portion of the webpage on the touch screen display by 90°.
 20. The device of claim 1,including instructions for: detecting a change in orientation of thedevice, in response to detecting the change in orientation of thedevice, rotating the displayed portion of the web page on the touchscreen display by 90°.
 21. The device of claim 1, including instructionsfor: detecting a multi-finger de-pinch gesture on the touch screendisplay, in response to detecting the multi-finger de-pinch gesture,enlarging a portion of the displayed portion of the web page on thetouch screen display in accordance with a position of the multi-fingerde-pinch gesture and an amount of finger movement in the multi-fingerde-pinch gesture.
 22. A non-transitory computer readable storage mediumstoring one or more programs, the one or more programs comprisinginstructions, which when executed by a portable electronic device with atouch screen display, cause the device to: display at least a portion ofa web page on the touch screen display, wherein the web page comprises aplurality of boxes of content; detect a first gesture at a location onthe displayed portion of the web page; determine a first box in theplurality of boxes at the location of the first gesture; enlarge andtranslate the web page so that the first box is substantially centeredon the touch screen display; while the first box is enlarged, detect asecond gesture on a second box other that the first box; and, inresponse to detecting the second gesture, translate the web page so thatthe second box is substantially centered on the touch screen display.23. The computer readable storage medium of claim 22, includinginstructions which cause the device to: prior to displaying at least aportion of a web page, determine borders, margins, and/or paddings forthe plurality of boxes that are specified in the web page; and adjustthe borders, margins, and/or paddings for the plurality of boxes fordisplay on the touch screen display.
 24. The computer readable storagemedium of claim 22, wherein: the web page has a document width and adocument length; the touch screen display has a display width; anddisplaying at least a portion of the web page comprises scaling thedocument width to fit within the display width independent of thedocument length.
 25. The computer readable storage medium of claim 24,wherein: the touch screen display is rectangular with a short axis and along axis; the display width corresponds to the short axis when the webpage is seen in portrait view; and the display width corresponds to thelong axis when the web page is seen in landscape view.
 26. The computerreadable storage medium of claim 22, wherein the plurality of boxes aredefined by a style sheet language.
 27. The computer readable storagemedium of claim 26, wherein the style sheet language is a cascadingstyle sheet language.
 28. The computer readable storage medium of claim22, wherein: the web page has an associated render tree with a pluralityof nodes; and determining the first box at the location of the firstgesture comprises: traversing down the render tree to determine a firstnode in the plurality of nodes that corresponds to the detected locationof the first gesture; traversing up the render tree from the first nodeto a closest parent node that contains a logical grouping of content;and identifying content corresponding to the closest parent node as thefirst box.
 29. The computer readable storage medium of claim 28, whereinthe logical grouping of content comprises a paragraph, an image, aplugin object, or a table.
 30. The computer readable storage medium ofclaim 28, wherein the closest parent node is a replaced inline, a block,an inline block, or an inline table.
 31. The computer readable storagemedium of claim 22, wherein enlarging and translating the web pagecomprises displaying at least a portion of the second box of theplurality of boxes of content on the touch screen display.
 32. Thecomputer readable storage medium of claim 22, wherein enlargingcomprises expanding the first box so that the width of the first box issubstantially the same as the width of the touch screen display.
 33. Thecomputer readable storage medium of claim 22, including instructionswhich cause the device to resize text in the enlarged first box to meetor exceed a predetermined minimum text size on the touch screen display.34. The computer readable storage medium of claim 33, wherein the textresizing comprises: determining a scale factor by which the first boxwill be enlarged; dividing the predetermined minimum text size on thetouch screen display by the scaling factor to determine a minimum textsize for text in the first box; and if a text size for text in the firstbox is less than the determined minimum text size, increasing the textsize for text in the first box to at least the determined minimum textsize.
 35. The computer readable storage medium of claim 22, includinginstructions which cause the device to resize text in the web page tomeet or exceed a predetermined minimum text size on the touch screendisplay.
 36. The computer readable storage medium of claim 35, whereinthe text resizing comprises: determining a scale factor by which thefirst box will be enlarged; dividing the predetermined minimum text sizeon the touch screen display by the scaling factor to determine a minimumtext size for text in the web page; and if a text size for text in theweb page is less than the determined minimum text size, increasing thetext size for text in the web page to at least the determined minimumtext size.
 37. The computer readable storage medium of claim 35, whereinthe text resizing comprises: identifying boxes containing text in theplurality of boxes; determining a scale factor by which the first boxwill be enlarged; dividing the predetermined minimum text size on thetouch screen display by the scaling factor to determine a minimum textsize for text in the web page; and for each identified box containingtext, if a text size for text in the identified box is less than thedetermined minimum text size, increasing the text size for text in theidentified box to at least the determined minimum text size andadjusting the size of the identified box.
 38. The computer readablestorage medium of claim 22, including instructions which cause thedevice to: detect a third gesture on the enlarged second box; and inresponse to detecting the third gesture, reduce in size the displayedportion of the web page.
 39. The computer readable storage medium ofclaim 22, including instructions which cause the device to: detect aswipe gesture on the touch screen display; and in response to detectingthe swipe gesture, translate the displayed portion of the web page onthe touch screen display.
 40. The computer readable storage medium ofclaim 22, including instructions which cause the device to: detect afifth gesture on the touch screen display, in response to detecting thefifth gesture, rotate the displayed portion of the web page on the touchscreen display by 90°.
 41. The computer readable storage medium of claim22, including instructions which cause the device to: detect a change inorientation of the device, in response to detecting the change inorientation of the device, rotate the displayed portion of the web pageon the touch screen display by 90°.
 42. The computer readable storagemedium of claim 22, including instructions which cause the device to:detect a multi-finger de-pinch gesture on the touch screen display, inresponse to detecting the multi-finger de-pinch gesture, enlarge aportion of the displayed portion of the web page on the touch screendisplay in accordance with a position of the multi-finger de-pinchgesture and an amount of finger movement in the multi-finger de-pinchgesture.
 43. A non-transitory computer readable storage medium storingone or more programs, the one or more programs comprising instructions,which when executed by a portable electronic device with a touch screendisplay, cause the device to: display a user interface on the touchscreen display, wherein the user interface includes: a displayed windowof an application, the displayed window being in full view on the touchscreen display, and one or more partially hidden windows of theapplication; while displaying the displayed window and the one or morepartially hidden windows, detect a finger gesture on the touch screendisplay; in response to detecting the finger gesture on the touch screendisplay; move the displayed window partially or fully off the touchscreen display, and move a first partially hidden window into full viewon the touch screen display; and in response to detecting a fingergesture on an icon, enlarge a window of the application in the center ofthe touch screen display.
 44. The computer readable storage medium ofclaim 43, wherein the detected finger gesture is a swipe gesture. 45.The computer readable storage medium of claim 43, including instructionswhich cause the device to: in response to detecting the finger gesture,move a second partially hidden window off the touch screen display. 46.The computer readable storage medium of claim 43, wherein the detectedfinger gesture is a left-to-right swipe gesture, including instructionswhich cause the device to: in response to detecting the left-to-rightswipe gesture: move the displayed window partially off-screen to theright, move the first partially hidden window into full view on thetouch screen display, and move a second partially hidden windowcompletely off-screen.
 47. The computer readable storage medium of claim43, wherein the user interface is displayed in response to activation ofan icon for initiating display of the user interface, and wherein theicon for initiating display of the user interface indicates the numberof windows in the application.
 48. The computer readable storage mediumof claim 43, wherein the displayed window and the one or more partiallyhidden windows are displayed prior to detecting the gesture.
 49. Aportable electronic device, comprising: a touch screen display; one ormore processors; memory; and one or more programs, wherein the one ormore programs are stored in the memory and configured to be executed bythe one or more processors, the one or more programs includinginstructions for: displaying at least a portion of a web page on thetouch screen display, wherein the web page comprises a plurality ofboxes of content; detecting a first gesture at a location on thedisplayed portion of the web page; determining a first box in theplurality of boxes at the location of the first gesture, the first boxhaving a first size; enlarging and translating the web page so that thefirst box is substantially centered on the touch screen display at asecond size greater than the first size; while the first box isenlarged, detecting a second gesture on the enlarged first box; and inresponse to detecting the second gesture, reducing in size the displayedportion of the web page.
 50. The device of claim 49, wherein reducing insize the displayed portion of the web page reduces the first box to thefirst size.
 51. The device of claim 49, wherein the second gesture andthe first gesture are the same type of gesture.
 52. The device of claim49, wherein the second gesture is a tap gesture.
 53. The device of claim52, wherein the second gesture is a double tap with a single finger, adouble tap with two fingers, a single tap with a single finger, or asingle tap with two fingers.
 54. A method, comprising: at a portableelectronic device with a touch screen display; displaying at least aportion of a web page on the touch screen display, wherein the web pagecomprises a plurality of boxes of content; detecting a first gesture ata location on the displayed portion of the web page; determining a firstbox in the plurality of boxes at the location of the first gesture, thefirst box having a first size; enlarging and translating the web page sothat the first box is substantially centered on the touch screen displayat a second size greater than the first size; while the first box isenlarged, detecting a second gesture on the enlarged first box; and inresponse to detecting the second gesture, reducing in size the displayedportion of the web page.
 55. The method of claim 54, wherein reducing insize the displayed portion of the web page reduces the first box to thefirst size.
 56. The method of claim 54, wherein the second gesture andthe first gesture are the same type of gesture.
 57. The method of claim54, wherein the second gesture is a tap gesture.
 58. The method of claim57, wherein the second gesture is a double tap with a single finger, adouble tap with two fingers, a single tap with a single finger, or asingle tap with two fingers.
 59. A non-transitory computer readablestorage medium storing one or more programs, the one or more programscomprising instructions, which when executed by a portable electronicdevice with a touch screen display, cause the device to: display atleast a portion of a web page on the touch screen display, wherein theweb page comprises a plurality of boxes of content; detect a firstgesture at a location on the displayed portion of the web page;determine a first box in the plurality of boxes at the location of thefirst gesture, the first box having a first size; enlarge and translatethe web page so that the first box is substantially centered on thetouch screen display at a second size greater than the first size; whilethe first box is enlarged, detect a second gesture on the enlarged firstbox; and in response to detecting the second gesture, reduce in size thedisplayed portion of the web page.
 60. The computer readable storagemedium of claim 59, wherein reducing in size the displayed portion ofthe web page reduces the first box to the first size.
 61. The computerreadable storage medium of claim 59, wherein the second gesture and thefirst gesture are the same type of gesture.
 62. The computer readablestorage medium of claim 59, wherein the second gesture is a tap gesture.63. The computer readable storage medium of claim 62, wherein the secondgesture is a double tap with a single finger, a double tap with twofingers, a single tap with a single finger, or a single tap with twofingers.
 64. A graphical user interface on a portable electronic devicewith a touch screen display, a memory, and one or more processors toexecute one or more programs stored in the memory, the graphical userinterface comprising: at least a portion of a web page displayed on thetouch screen display, wherein the web page comprises a plurality ofboxes of content; wherein: a first box in the plurality of boxes isdetermined at a location on the displayed portion of the web page wherea first gesture is detected, the first box having a first size; the webpage is enlarged and translated so that the first box is substantiallycentered on the touch screen display at a second size greater than thefirst size; the displayed portion of the web page is reduced in size inresponse to detection, while the first box is enlarged, of a secondgesture on the enlarged first box.
 65. The graphical user interface ofclaim 64, wherein reducing in size the displayed portion of the web pagereduces the first box to the first size.
 66. The graphical userinterface of claim 64, wherein the second gesture and the first gestureare the same type of gesture.
 67. The graphical user interface of claim64, wherein the second gesture is a tap gesture.
 68. The graphical userinterface of claim 67, wherein the second gesture is a double tap with asingle finger, a double tap with two fingers, a single tap with a singlefinger, or a single tap with two fingers.
 69. A method, comprising: at aportable electronic device with a touch screen display; displaying auser interface on the touch screen display, wherein the user interfaceincludes: a displayed window of an application, the displayed windowbeing in full view on the touch screen display, and one or morepartially hidden windows of the application; while displaying thedisplayed window and the one or more partially hidden windows, detectinga finger gesture on the touch screen display; in response to detectingthe finger gesture on the touch screen display: moving the displayedwindow partially or fully off the touch screen display, and moving afirst partially hidden window into full view on the touch screendisplay; and in response to detecting a finger gesture on an icon,enlarge a window of the application in the center of the touch screendisplay.
 70. The method of claim 69, wherein the detected finger gestureis a swipe gesture.
 71. The method of claim 69, including: in responseto detecting the finger gesture, moving a second partially hidden windowoff the touch screen display.
 72. The method of claim 69, wherein thedetected finger gesture is a left-to-right swipe gesture, including: inresponse to detecting the left-to-right swipe gesture: moving thedisplayed window partially off-screen to the right, moving the firstpartially hidden window into full view on the touch screen display, andmoving a second partially hidden window completely off-screen.
 73. Themethod of claim 69, wherein the user interface is displayed in responseto activation of an icon for initiating display of the user interface,and wherein the icon for initiating display of the user interfaceindicates the number of windows in the application.
 74. The method ofclaim 69, wherein the displayed window and the one or more partiallyhidden windows are displayed prior to detecting the gesture.